Hello everyone! I've been on tri-nessa for about a month now and I have not yet got my period. I'm suppose to start on the last row of pills right? I started taking the pill the first sunday of my period. All I have been getting is light cramps, nothing else. I haven't missed a dose and have been taking it around the same time everyday. Also, how long do I have to stay on the pill for me and my fiance to start having unprotected sex?? Any answers greatly appreciated! Thanks!